Microsoft Technology Licensing, LLC

Oliver C Lee

Lev Novik

Moe Khosravy

Michael Ray Clark

Joel K Grossman

Brian D Wentz

Jordan L K Schwartz

Quji Guo

Christopher J Araman

Lili Cheng

Andrew L Silverman

Randall Knight Winjum

Shelly D Farnham

Jorg-Thomas Pfenning

Cees Van Dok

Michael Scott Beckerman

Neil Leonard Padgett

Thomas Pfenning

Alexander Castro

Jörg-Thomas Pfenning

A Web service synchronization protocol is provided that sets forth the metadata and messaging by which endpoints roam, share and synchronize common information with one another in a multi-master networked computing ecosystem. A general SOAP-based protocol is defined for synchronizing data between two endpoints where one or more of the endpoints supports a Web service. Defining messaging for knowledge-based transfers using XML Web services, the protocol allows devices, services and applications to synchronize through firewalls, allows for flexibility by allowing any common set or subset of information across endpoints and allows for extensibility by not prescribing the schema of the actual data being synchronized at the endpoints.

Synchronization of web service endpoints in a multi-master synchronization environment

The subject disclosure relates to synchronizing among network nodes in a multi-master synchronization environment that extend a knowledge based synchronization framework to include notions of object quality. In one embodiment, additional dimension(s) are placed on a knowledge vector for a given version of an object that represent quality information for the object, which is accounted for during the synchronization process to allow nodes to decide what types of qualities of objects should be conveyed to them as part of the synchronization process. Other embodiments include tombstoning objects to avoid future synchronization with respect to same objects maintained by other nodes in the multi-master synchronization environment. Advantageously, according to the synchronization framework, endpoints can synchronize data in a way that allows a definition and consideration of quality of one or more objects of the synchronized data for purposes of a knowledge exchange.

Representation of qualitative object changes in a knowledge based framework for a multi-master synchronization environment

Systems and methods that disclose alternative patterns for exchange of synchronization data and/or metadata, e.g., 'knowledge', to enhance performance of synchronization processes are disclosed. Accordingly, the innovation discloses synchronization mechanisms that employ exchange of data and metadata to alleviate a requirement of a complete 'round-trip' when synchronizing data. &#x2018;Knowledge&#x2019; can be provided which informs a provider of data changes, modifications, additions or deletions. The &#x2018;knowledge&#x2019; can lower expense and/or increase efficiencies of the synchronization exchanges by enabling informed decision-making related to enumerating changes within the synchronization processes.

Exchange of syncronization data and metadata

An efficient way is provided to represent and exchange knowledge and/or partial knowledge across nodes when synchronizing between any two nodes. A first node sends a second node its knowledge and/or partial knowledge, including objects and versions of those objects. The second node compares its knowledge and/or partial knowledge with the knowledge and/or partial knowledge of the first node, and then sends the first node any latest versions of objects of which the first node is unaware. In addition, the second node sends its knowledge and/or partial knowledge to the first node. The first node then performs a similar object-by-object version comparison to determine any conflicts due to independent evolution of objects and any changes that should be sent to the second node in order to bring the objects of the second node up to date with the knowledge and/or partial knowledge of the first node.

Knowledge based synchronization of subsets of data with no move condition

Systems and methods for establishing and maintaining a shared browsing experience are disclosed. A method for establishing a shared browsing experience includes an inviter computer communicating to an invitee computer, via an online messenger communication path, an invitation to establish a co-browsing experience. The invitee computer communicates to the inviter computer, via the first communication path, an acceptance of the invitation. A co-browsing communication path is then established between the inviter computer and the invitee computer. Information relating to the shared browsing experience is then communicated between the inviter and invitee computers via the co-browsing communication path.

Systems and methods for shared browsing among a plurality of online co-users

A sync community may include a group of synchronization endpoints. When two synchronization endpoints of the sync community synchronize with one another, a synchronization data conflict may be detected when the two synchronization endpoints make a change to a same particular data item and the two synchronization endpoints were unaware of the changes to the same particular data item made by the other respective synchronization endpoint at the time the changes were made. Resolution of the detected synchronization data conflict may be delayed and data indicative of the detected synchronization data conflict may be propagated to other synchronization endpoints during a synchronization operation.

Propagation of conflict knowledge

An embodiment of the invention is directed to providing robust file system information for non-native devices. In operation, a file system includes both a file storage area for providing access to the contents of files, and a metadata store. The metadata store stores metadata associated with each file or device. When a device is connected to the file system, metadata for that device, and its items, is generated and stored in the metadata store. The metadata persists within the metadata store when the device is disconnected from, or no longer available to, the file system.

Computer system and method for providing robust file system information for non-native file system devices

Synchronization of a web syndication item over a Really Simple Syndication (RSS) format between a publisher and a subscriber. The publisher creates the web syndication item by including a media content associated therewith. The synchronization metadata is defined to include a first virtual clock value associated with the created web syndication item. The first virtual clock value indicates when the web syndication item was last updated. A request for subscribing the published web syndication item is received from the subscriber. In response to the received request, the published web syndication item is transmitted to a location remote from the publisher and accessible by the subscriber. The first virtual clock value is provided to the subscriber for use by the subscriber to modify the first virtual clock value when the subscriber modifies the media content associated with the web syndication item.

Two-way and multi-master synchronization over web syndications

Systems and methods for establishing a shared dynamic content experience are disclosed. A method for sharing a dynamic content experience according to the invention includes an inviter computer communicating, via a first communication path between an invitee computer and a network based communication server, an invitation to establish a shared dynamic content experience between the inviter computer and the invitee computer. If the invitation is accepted, a content sharing communication path is established between the inviter computer and the invitee computer. Information relating to a current dynamic content experience at the inviter computer is communicated, via the content sharing communication path, to the invitee computer. Information relating to a current dynamic content experience at the invitee computer is communicated, via the content sharing communication path, to the inviter computer.

Growing community of inventors

Redmond, WA, United States of America

Oliver C Lee